555403489 has 3 divisors (see below), whose sum is σ = 555427057. Its totient is φ = 555379922.

The previous prime is 555403469. The next prime is 555403529. The reversal of 555403489 is 984304555.

The square root of 555403489 is 23567.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 555403489 - 2¹⁵ = 555370721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555403439) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11784 + ... + 35350.

Almost surely, 2^555403489 is an apocalyptic number.

555403489 is the 23567-th square number.

555403489 is the 11784-th centered octagonal number.

It is an amenable number.

555403489 is a deficient number, since it is larger than the sum of its proper divisors (23568).

555403489 is an frugal number, since it uses more digits than its factorization.

555403489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47134 (or 23567 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The cubic root of 555403489 is about 821.9956789239.

The spelling of 555403489 in words is "five hundred fifty-five million, four hundred three thousand, four hundred eighty-nine".